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Simple line graph in d3.js

This example shows a simple line graph plotting stock closing prices over time, with date values on the x-axis and price on the y-axis. The visualization uses D3.js version 3.5.17, employing `d3.time.scale` for the date range, `d3.scale.linear` for the value axis, and `d3.svg.line` to generate the path. Data is loaded from a local CSV file via `d3.csv`, with the axes created through `d3.svg.axis`. The SVG rendering includes styled axis lines and a steelblue line, providing a minimal teaching example for D3 chart construction.

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Simple Line Graph v7

This chart displays the closing price of a stock over time from late March to early May 2012, using a single blue line. It renders data from a CSV file as an SVG path, with the x-axis showing dates and the y-axis showing price values. The code loads the data via `d3.csv`, parses dates with `d3.timeParse`, scales the axes with `d3.scaleTime` and `d3.scaleLinear`, and draws the line using `d3.line`. It appends axes with `d3.axisBottom` and `d3.axisLeft` to complete the visualization.

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Line Chart 4.0

This line chart visualizes daily closing stock prices from April 2007 to June 2008, with time on the x-axis and price in dollars on the y-axis. The SVG rendering uses D3 v4 APIs including `d3.timeParse`, `d3.scaleTime`, `d3.scaleLinear`, and `d3.line` to generate the path, while axes are drawn with `d3.axisBottom` and `d3.axisLeft`. The data is loaded from a tab-separated `data.tsv` file containing date and close columns, with the line styled in steelblue.

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Simple d3.js tooltips

A line chart plots stock closing prices over time, with a tooltip that reveals the exact date and price when hovering over a data point. The visualization uses d3.js to render SVG circles for each data point and a path for the line, reading time-series data from a CSV file. The tooltip is implemented using an HTML div that appears via d3 transitions on mouseover and mouseout events, positioning itself near the cursor using `d3.event.pageX` and `d3.event.pageY`. The chart axes employ `d3.svg.axis` with time and linear scales.

Simple line graph with v4

A simple line graph shows the closing price of a dataset over time, with dates on the x-axis and values on the y-axis. Using d3.v4, the code loads a CSV file via `d3.csv`, parses dates with `d3.timeParse`, and constructs the line with `d3.line`. SVG scales and axes are built with `d3.scaleTime`, `d3.scaleLinear`, `d3.axisBottom`, and `d3.axisLeft`. The rendered SVG path displays a steelblue line, with margins and dimensions set explicitly.

Simple line graph with v4

This simple line graph displays the daily closing value of a stock over a month, using data from a CSV file. The SVG chart is built with D3.js v4, employing `d3.scaleTime` and `d3.scaleLinear` to map dates and prices, while `d3.line` generates the path. The axes are drawn with `d3.axisBottom` and `d3.axisLeft`, and the line is styled with a steel-blue stroke.

Simple d3.js Graph

This simple d3.js graph displays a time series of closing stock prices from a CSV file, with dates on the x-axis and values on the y-axis. Rendered as an SVG line chart, it uses d3.svg.line, d3.time.scale, and d3.scale.linear to map the data, while d3.svg.axis generates the axes. The data.csv file contains 26 daily entries from March to May 2012, positioned within a 600×270 pixel canvas with margins. The code also applies a steelblue stroke to the line and grey axis lines via CSS.

HTML Starter

This example displays a multi-series line chart of stock data, plotting both opening and closing values over time as two distinct colored lines. The visualization uses D3 v4 with SVG rendering, employing `d3.line()` to generate the paths, `d3.scaleTime()` for the time-based x-axis, and `d3.scaleLinear()` for the y-axis. Data is loaded from a local CSV file via `d3.csv()`, with dates parsed using `d3.timeParse()`. The chart includes axes rendered through `d3.axisBottom()` and `d3.axisLeft()`, all styled with basic CSS classes.

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